mypy: Clarify Callable parameters & return type for get_timing.
mypy: Clarify Callable parameters & return type for get_timing.

dhcrzf/zulip,Galexrt/zulip,shubhamdhama/zulip,andersk/zulip,shubhamdhama/zulip,rishig/zulip,mahim97/zulip,tommyip/zulip,timabbott/zulip,andersk/zulip,timabbott/zulip,synicalsyntax/zulip,timabbott/zulip,brainwane/zulip,tommyip/zulip,zulip/zulip,punchagan/zulip,mahim97/zulip,synicalsyntax/zulip,timabbott/zulip,punchagan/zulip,mahim97/zulip,dhcrzf/zulip,andersk/zulip,timabbott/zulip,eeshangarg/zulip,andersk/zulip,dhcrzf/zulip,brainwane/zulip,eeshangarg/zulip,rishig/zulip,brockwhittaker/zulip,brainwane/zulip,synicalsyntax/zulip,shubhamdhama/zulip,tommyip/zulip,jackrzhang/zulip,hackerkid/zulip,Galexrt/zulip,Galexrt/zulip,shubhamdhama/zulip,rishig/zulip,punchagan/zulip,dhcrzf/zulip,mahim97/zulip,dhcrzf/zulip,showell/zulip,eeshangarg/zulip,tommyip/zulip,brockwhittaker/zulip,brockwhittaker/zulip,tommyip/zulip,andersk/zulip,brainwane/zulip,mahim97/zulip,rht/zulip,rishig/zulip,brainwane/zulip,punchagan/zulip,hackerkid/zulip,tommyip/zulip,kou/zulip,timabbott/zulip,rishig/zulip,showell/zulip,eeshangarg/zulip,rht/zulip,showell/zulip,jackrzhang/zulip,rht/zulip,rht/zulip,Galexrt/zulip,jackrzhang/zulip,showell/zulip,hackerkid/zulip,Galexrt/zulip,brockwhittaker/zulip,rht/zulip,shubhamdhama/zulip,showell/zulip,andersk/zulip,zulip/zulip,synicalsyntax/zulip,kou/zulip,eeshangarg/zulip,punchagan/zulip,rht/zulip,dhcrzf/zulip,kou/zulip,brainwane/zulip,timabbott/zulip,showell/zulip,zulip/zulip,hackerkid/zulip,kou/zulip,tommyip/zulip,jackrzhang/zulip,mahim97/zulip,synicalsyntax/zulip,hackerkid/zulip,synicalsyntax/zulip,punchagan/zulip,Galexrt/zulip,kou/zulip,punchagan/zulip,hackerkid/zulip,zulip/zulip,eeshangarg/zulip,zulip/zulip,rishig/zulip,rht/zulip,shubhamdhama/zulip,hackerkid/zulip,synicalsyntax/zulip,zulip/zulip,kou/zulip,jackrzhang/zulip,eeshangarg/zulip,kou/zulip,brockwhittaker/zulip,jackrzhang/zulip,dhcrzf/zulip,zulip/zulip,brockwhittaker/zulip,andersk/zulip,jackrzhang/zulip,shubhamdhama/zulip,Galexrt/zulip,rishig/zulip,brainwane/zulip,showell/zulip